geotools/selection/FeatureMapLayerSelectionSynchronizer.java

/** 
 Copyright 2008 Stefan Alfons Krüger 
 
 atlas-framework - This file is part of the Atlas Framework

 This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
 This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA

 Diese Bibliothek ist freie Software; Sie dürfen sie unter den Bedingungen der GNU Lesser General Public License, wie von der Free Software Foundation veröffentlicht, weiterverteilen und/oder modifizieren; entweder gemäß Version 2.1 der Lizenz oder (nach Ihrer Option) jeder späteren Version.
 Diese Bibliothek wird in der Hoffnung weiterverbreitet, daß sie nützlich sein wird, jedoch OHNE IRGENDEINE GARANTIE, auch ohne die implizierte Garantie der MARKTREIFE oder der VERWENDBARKEIT FÜR EINEN BESTIMMTEN ZWECK. Mehr Details finden Sie in der GNU Lesser General Public License.
 Sie sollten eine Kopie der GNU Lesser General Public License zusammen mit dieser Bibliothek erhalten haben; falls nicht, schreiben Sie an die Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA.
 **/
package skrueger.geotools.selection;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Collection;
import java.util.Vector;

import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionListener;

import org.geotools.feature.Feature;
import org.geotools.feature.FeatureCollection;
import org.geotools.map.MapLayer;
import org.geotools.styling.Style;
import org.opengis.filter.Filter;
import org.opengis.filter.FilterVisitor;

import schmitzm.geotools.gui.JMapPane;
import schmitzm.geotools.map.event.FeatureSelectedEvent;
import schmitzm.geotools.map.event.JMapPaneEvent;
import schmitzm.geotools.map.event.JMapPaneListener;
import schmitzm.geotools.styling.StylingUtil;
import schmitzm.lang.LangUtil;
import skrueger.geotools.MapPaneToolBar;
import skrueger.geotools.StyledMapInterface;

/**
 * This class keeps the selection of a (feature) {@link JTable} synchronized
 * with the {@link StyledLayerSelectionModel} of a layer. This is done by
 * implementing:
 * <ul>
 * <li>a {@link PropertyChangeListener} which listens to the
 * {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
 * selection</li>
 * <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
 * accordingly changes the {@link StyledLayerSelectionModel} selection</li>
 * </ul>
 * After creating, the instance of this synchronizer must be added as listener
 * to both, the {@link StyledLayerSelectionModel} and the table's
 * {@link ListSelectionModel}.
 * 
 * @author <a href="mailto:[email protected]">Martin Schmitz</a>
 *         (University of Bonn/Germany)
 */
public class FeatureMapLayerSelectionSynchronizer extends
                StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
                implements JMapPaneListener {
        public static final String SELECTION_STYLING = "SELECTION";
        /**
         * Holds the {@link MapLayer} to keep synchronized with the layer selection
         * model.
         */
        protected final MapLayer mapLayer;
        protected final StyledMapInterface<?> styledMapLayer;
        protected final JMapPane mapPane;
        private final MapPaneToolBar toolBar;

        /**
         * Creates a new synchronizer
         * 
         * @param layerSelModel
         *            layer selection model to keep synchronized with the
         *            {@link MapLayer}
         * 
         * @param mapLayer
         *            {@link MapLayer} to keep synchronized with.
         */
        public FeatureMapLayerSelectionSynchronizer(
                        StyledFeatureLayerSelectionModel layerSelModel,
                        StyledMapInterface<?> styledMapLayer, MapLayer mapLayer,
                        JMapPane mapPane, MapPaneToolBar toolBar) {

                super(layerSelModel);
                this.styledMapLayer = styledMapLayer;

                this.mapLayer = mapLayer;
                this.mapPane = mapPane;
                this.toolBar = toolBar;
        }

        /**
         * Called by {@link StyledLayerSelectionModel} when a the selection on other
         * selection components (map, chart, ...) has changed. When calling this
         * 
         * method changes the {@link MapLayer} selection according to the
         * {@link StyledLayerSelectionModel} selection.
         * 
         * @param evt
         *            an event
         */
        @Override
        public void propertyChange(PropertyChangeEvent evt) {
                if (!(evt instanceof StyledLayerSelectionEvent))
                        return;
                StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
                // Only react on own layer and ignore events invoked by
                // this component itself
                if (selEvt.getEmitter() != layerSelModel || selectionChangeCausedByMe)
                        return;
                // Apply new selection on table (except this event is one of
                // some more events)
                Vector<String> newSelection = layerSelModel.getSelection();
                if (newSelection == null)
                        return;

                // Avoid event circles in valueChanged(..)
                selectionChangeCausedByMe = true;

                changeLayerStyle(newSelection);

                // Danger of event circles in valueChanged(..) banned
                selectionChangeCausedByMe = false;
        }

        private void changeLayerStyle(final Vector<String> newSelection) {
                Style selectionMapStyle = null;
                try {
                        if (newSelection.isEmpty()) {

                                selectionMapStyle = styledMapLayer.getStyle();
                                LOGGER.debug("NO SELECTION .. set to original style directly");

                        } else {
                                LOGGER.debug("SELECTION .. change style");

                                Style originalStyle = styledMapLayer.getStyle();

                                // TODO This clone is a deep clone and it is slow..
                                selectionMapStyle = StylingUtil
                                                .createDefaultStyle(styledMapLayer.getGeoObject());
                                selectionMapStyle.getFeatureTypeStyles()[0].setName(SELECTION_STYLING);

                                // Symbolizer sss =
                                // selectionMapStyle.getFeatureTypeStyles()[0].getRules()[0].getSymbolizers()[0];
                                // if (sss instanceof PolygonSymbolizer) {
                                // PolygonSymbolizer ps = (PolygonSymbolizer) sss;
                                // ps.getFill().setOpacity( FilterUtil.FILTER_FAC.literal(0.5));
                                // }

                                // Rule selectedRule = StylingUtil.STYLE_FACTORY.createRule();
                                selectionMapStyle.getFeatureTypeStyles()[0].getRules()[0]
                                                .setFilter(new Filter() {

                                                        @Override
                                                        public Object accept(FilterVisitor visitor,
                                                                        Object extraData) {
                                                                return null;
                                                        }

                                                        @Override
                                                        public boolean evaluate(Object obj) {
                                                                if (obj instanceof Feature) {
                                                                        Feature f = (Feature) obj;
                                                                        // TODO BAD CODE?
                                                                        for (String ffID : newSelection) {
                                                                                if (ffID.equals(f.getID()))
                                                                                        return true;
                                                                        }
                                                                        return false;

                                                                }
                                                                return false;
                                                        }

                                                });

                                selectionMapStyle.setFeatureTypeStyles(LangUtil.extendArray(
                                                originalStyle.getFeatureTypeStyles(), selectionMapStyle
                                                                .getFeatureTypeStyles()));

                                // selectionMapStyle.setFeatureTypeStyles(originalStyle.getF)

                                // Flat copy the style

                                // selectionMapStyle =
                                // StylingUtil.createDefaultStyle(styledMapLayer.getGeoObject());

                        }

                        mapLayer.setStyle(selectionMapStyle);
                        mapPane.refresh();
                } catch (Exception e) {
                        LOGGER.error("Error while trying to create a selection style", e);
                }
        }

        @Override
        public void performMapPaneEvent(JMapPaneEvent e) {

                /**
                 * Only listen to FeatureSelectionEvents if the appropriate tool is
                 * selected.
                 */
                final int selectedTool = toolBar.getSelectedTool();
                if (selectedTool != MapPaneToolBar.TOOL_SELECTION_ADD
                                && selectedTool != MapPaneToolBar.TOOL_SELECTION_REMOVE
                                && selectedTool != MapPaneToolBar.TOOL_SELECTION_CLEAR
                                && selectedTool != MapPaneToolBar.TOOL_SELECTION_SET) {
                        return;
                }

                if (!(e instanceof FeatureSelectedEvent)) {
                        // LOGGER.debug("Ignoring event " + e);
                        return;
                }
                // only listen to events directly coming from JMapPane
                // selection (ignore selections from FilterDialog)
                if (e.getSourceObject() != this.mapPane)
                        return;

                FeatureSelectedEvent fse = (FeatureSelectedEvent) e;

                // ignore event if it is caused by the DpLayerVectorSelectionModel
                if (selectionChangeCausedByMe)
                        return;

                LOGGER.debug("Do event " + fse);

                // Avoid event circles in propertyChange(..)
                selectionChangeCausedByMe = true;

                if (selectedTool == MapPaneToolBar.TOOL_SELECTION_CLEAR) {
                        layerSelModel.clearSelection();
                } else {
                        Collection<Feature> selectionResult = (Collection<Feature>) fse
                                        .getSelectionResult();

                        // reset the selection of the DpLayerSelectionModel
                        // layerSelModel.setValueIsAdjusting(true);

                        if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
                                layerSelModel.setValueIsAdjusting(true);
                                for (Feature f : selectionResult) {
                                        layerSelModel.addSelection(f.getID());
                                }
                                layerSelModel.setValueIsAdjusting(false);
                        } else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
                                layerSelModel.setValueIsAdjusting(true);
                                layerSelModel.clearSelection();

                                for (Feature f : selectionResult) {
                                        layerSelModel.addSelection(f.getID());
                                }

                                LOGGER.debug("Setting selection to " + selectionResult.size());
                                layerSelModel.setValueIsAdjusting(false);
                        } else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
                                layerSelModel.setValueIsAdjusting(true);
                                for (Feature f : selectionResult) {
                                        layerSelModel.removeSelection(f.getID());
                                }
                                layerSelModel.setValueIsAdjusting(false);
                        }
                } // els it's not a Clear Selection command

                // Show selected features in the map, which is not automatically done by
                // the origin: FeatureSelectedEvent
                changeLayerStyle(layerSelModel.getSelection());

                // Danger of event circles in propertyChange(..) banned
                selectionChangeCausedByMe = false;
        }
}
1	alfonx	97	/**
2			Copyright 2008 Stefan Alfons Krüger
3
4			atlas-framework - This file is part of the Atlas Framework
5
6			This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
7			This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
8			You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
9
10			Diese Bibliothek ist freie Software; Sie dürfen sie unter den Bedingungen der GNU Lesser General Public License, wie von der Free Software Foundation veröffentlicht, weiterverteilen und/oder modifizieren; entweder gemäß Version 2.1 der Lizenz oder (nach Ihrer Option) jeder späteren Version.
11			Diese Bibliothek wird in der Hoffnung weiterverbreitet, daß sie nützlich sein wird, jedoch OHNE IRGENDEINE GARANTIE, auch ohne die implizierte Garantie der MARKTREIFE oder der VERWENDBARKEIT FÜR EINEN BESTIMMTEN ZWECK. Mehr Details finden Sie in der GNU Lesser General Public License.
12			Sie sollten eine Kopie der GNU Lesser General Public License zusammen mit dieser Bibliothek erhalten haben; falls nicht, schreiben Sie an die Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA.
13			**/
14			package skrueger.geotools.selection;
15
16			import java.beans.PropertyChangeEvent;
17			import java.beans.PropertyChangeListener;
18			import java.util.Collection;
19			import java.util.Vector;
20
21			import javax.swing.JTable;
22			import javax.swing.ListSelectionModel;
23			import javax.swing.event.ListSelectionListener;
24
25			import org.geotools.feature.Feature;
26	alfonx	111	import org.geotools.feature.FeatureCollection;
27	alfonx	97	import org.geotools.map.MapLayer;
28			import org.geotools.styling.Style;
29	alfonx	101	import org.opengis.filter.Filter;
30			import org.opengis.filter.FilterVisitor;
31	alfonx	97
32			import schmitzm.geotools.gui.JMapPane;
33			import schmitzm.geotools.map.event.FeatureSelectedEvent;
34			import schmitzm.geotools.map.event.JMapPaneEvent;
35			import schmitzm.geotools.map.event.JMapPaneListener;
36			import schmitzm.geotools.styling.StylingUtil;
37	alfonx	104	import schmitzm.lang.LangUtil;
38	alfonx	111	import skrueger.geotools.MapPaneToolBar;
39	alfonx	97	import skrueger.geotools.StyledMapInterface;
40
41			/**
42			* This class keeps the selection of a (feature) {@link JTable} synchronized
43			* with the {@link StyledLayerSelectionModel} of a layer. This is done by
44			* implementing:
45			* <ul>
46			* <li>a {@link PropertyChangeListener} which listens to the
47			* {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
48			* selection</li>
49			* <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
50			* accordingly changes the {@link StyledLayerSelectionModel} selection</li>
51			* </ul>
52			* After creating, the instance of this synchronizer must be added as listener
53			* to both, the {@link StyledLayerSelectionModel} and the table's
54			* {@link ListSelectionModel}.
55			*
56			* @author <a href="mailto:[email protected]">Martin Schmitz</a>
57			* (University of Bonn/Germany)
58			*/
59			public class FeatureMapLayerSelectionSynchronizer extends
60	alfonx	106	StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
61			implements JMapPaneListener {
62	alfonx	111	public static final String SELECTION_STYLING = "SELECTION";
63	alfonx	97	/**
64			* Holds the {@link MapLayer} to keep synchronized with the layer selection
65			* model.
66			*/
67			protected final MapLayer mapLayer;
68			protected final StyledMapInterface<?> styledMapLayer;
69			protected final JMapPane mapPane;
70	alfonx	111	private final MapPaneToolBar toolBar;
71	alfonx	97
72			/**
73			* Creates a new synchronizer
74			*
75			* @param layerSelModel
76			* layer selection model to keep synchronized with the
77			* {@link MapLayer}
78			*
79			* @param mapLayer
80			* {@link MapLayer} to keep synchronized with.
81			*/
82			public FeatureMapLayerSelectionSynchronizer(
83			StyledFeatureLayerSelectionModel layerSelModel,
84			StyledMapInterface<?> styledMapLayer, MapLayer mapLayer,
85	alfonx	111	JMapPane mapPane, MapPaneToolBar toolBar) {
86	alfonx	97
87			super(layerSelModel);
88			this.styledMapLayer = styledMapLayer;
89
90			this.mapLayer = mapLayer;
91			this.mapPane = mapPane;
92	alfonx	111	this.toolBar = toolBar;
93	alfonx	97	}
94
95			/**
96			* Called by {@link StyledLayerSelectionModel} when a the selection on other
97			* selection components (map, chart, ...) has changed. When calling this
98			*
99			* method changes the {@link MapLayer} selection according to the
100			* {@link StyledLayerSelectionModel} selection.
101			*
102			* @param evt
103			* an event
104			*/
105			@Override
106			public void propertyChange(PropertyChangeEvent evt) {
107			if (!(evt instanceof StyledLayerSelectionEvent))
108			return;
109			StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
110			// Only react on own layer and ignore events invoked by
111			// this component itself
112			if (selEvt.getEmitter() != layerSelModel \|\| selectionChangeCausedByMe)
113			return;
114			// Apply new selection on table (except this event is one of
115			// some more events)
116	alfonx	111	Vector<String> newSelection = layerSelModel.getSelection();
117	alfonx	97	if (newSelection == null)
118			return;
119
120			// Avoid event circles in valueChanged(..)
121			selectionChangeCausedByMe = true;
122
123			changeLayerStyle(newSelection);
124
125			// Danger of event circles in valueChanged(..) banned
126			selectionChangeCausedByMe = false;
127			}
128
129	alfonx	111	private void changeLayerStyle(final Vector<String> newSelection) {
130	alfonx	97	Style selectionMapStyle = null;
131			try {
132			if (newSelection.isEmpty()) {
133
134			selectionMapStyle = styledMapLayer.getStyle();
135	alfonx	111	LOGGER.debug("NO SELECTION .. set to original style directly");
136	alfonx	106
137	alfonx	97	} else {
138	alfonx	100	LOGGER.debug("SELECTION .. change style");
139	alfonx	106
140	alfonx	101	Style originalStyle = styledMapLayer.getStyle();
141
142	alfonx	106	// TODO This clone is a deep clone and it is slow..
143	alfonx	107	selectionMapStyle = StylingUtil
144	alfonx	106	.createDefaultStyle(styledMapLayer.getGeoObject());
145	alfonx	111	selectionMapStyle.getFeatureTypeStyles()[0].setName(SELECTION_STYLING);
146	alfonx	106
147	alfonx	111	// Symbolizer sss =
148			// selectionMapStyle.getFeatureTypeStyles()[0].getRules()[0].getSymbolizers()[0];
149			// if (sss instanceof PolygonSymbolizer) {
150			// PolygonSymbolizer ps = (PolygonSymbolizer) sss;
151			// ps.getFill().setOpacity( FilterUtil.FILTER_FAC.literal(0.5));
152			// }
153
154	alfonx	106	// Rule selectedRule = StylingUtil.STYLE_FACTORY.createRule();
155	alfonx	107	selectionMapStyle.getFeatureTypeStyles()[0].getRules()[0]
156	alfonx	106	.setFilter(new Filter() {
157
158			@Override
159			public Object accept(FilterVisitor visitor,
160			Object extraData) {
161			return null;
162	alfonx	105	}
163	alfonx	106
164			@Override
165			public boolean evaluate(Object obj) {
166			if (obj instanceof Feature) {
167			Feature f = (Feature) obj;
168	alfonx	111	// TODO BAD CODE?
169			for (String ffID : newSelection) {
170			if (ffID.equals(f.getID()))
171	alfonx	106	return true;
172			}
173			return false;
174
175			}
176			return false;
177			}
178
179			});
180
181			selectionMapStyle.setFeatureTypeStyles(LangUtil.extendArray(
182	alfonx	111	originalStyle.getFeatureTypeStyles(), selectionMapStyle
183			.getFeatureTypeStyles()));
184	alfonx	106
185			// selectionMapStyle.setFeatureTypeStyles(originalStyle.getF)
186
187	alfonx	101	// Flat copy the style
188	alfonx	106
189			// selectionMapStyle =
190			// StylingUtil.createDefaultStyle(styledMapLayer.getGeoObject());
191
192	alfonx	97	}
193
194			mapLayer.setStyle(selectionMapStyle);
195			mapPane.refresh();
196			} catch (Exception e) {
197			LOGGER.error("Error while trying to create a selection style", e);
198			}
199			}
200
201			@Override
202			public void performMapPaneEvent(JMapPaneEvent e) {
203	alfonx	106
204	alfonx	111	/**
205			* Only listen to FeatureSelectionEvents if the appropriate tool is
206			* selected.
207			*/
208			final int selectedTool = toolBar.getSelectedTool();
209			if (selectedTool != MapPaneToolBar.TOOL_SELECTION_ADD
210			&& selectedTool != MapPaneToolBar.TOOL_SELECTION_REMOVE
211			&& selectedTool != MapPaneToolBar.TOOL_SELECTION_CLEAR
212			&& selectedTool != MapPaneToolBar.TOOL_SELECTION_SET) {
213			return;
214			}
215
216	alfonx	105	if (!(e instanceof FeatureSelectedEvent)) {
217	alfonx	111	// LOGGER.debug("Ignoring event " + e);
218	alfonx	97	return;
219	alfonx	105	}
220	mojays	109	// only listen to events directly coming from JMapPane
221			// selection (ignore selections from FilterDialog)
222	alfonx	111	if (e.getSourceObject() != this.mapPane)
223			return;
224
225	alfonx	97	FeatureSelectedEvent fse = (FeatureSelectedEvent) e;
226
227			// ignore event if it is caused by the DpLayerVectorSelectionModel
228			if (selectionChangeCausedByMe)
229			return;
230
231	alfonx	111	LOGGER.debug("Do event " + fse);
232
233	alfonx	97	// Avoid event circles in propertyChange(..)
234			selectionChangeCausedByMe = true;
235
236	alfonx	111	if (selectedTool == MapPaneToolBar.TOOL_SELECTION_CLEAR) {
237			layerSelModel.clearSelection();
238			} else {
239			Collection<Feature> selectionResult = (Collection<Feature>) fse
240			.getSelectionResult();
241	alfonx	97
242	alfonx	111	// reset the selection of the DpLayerSelectionModel
243			// layerSelModel.setValueIsAdjusting(true);
244	alfonx	97
245	alfonx	111	if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
246			layerSelModel.setValueIsAdjusting(true);
247			for (Feature f : selectionResult) {
248			layerSelModel.addSelection(f.getID());
249			}
250			layerSelModel.setValueIsAdjusting(false);
251			} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
252			layerSelModel.setValueIsAdjusting(true);
253			layerSelModel.clearSelection();
254	alfonx	97
255	alfonx	111	for (Feature f : selectionResult) {
256			layerSelModel.addSelection(f.getID());
257			}
258
259			LOGGER.debug("Setting selection to " + selectionResult.size());
260			layerSelModel.setValueIsAdjusting(false);
261			} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
262			layerSelModel.setValueIsAdjusting(true);
263			for (Feature f : selectionResult) {
264			layerSelModel.removeSelection(f.getID());
265			}
266			layerSelModel.setValueIsAdjusting(false);
267			}
268			} // els it's not a Clear Selection command
269
270			// Show selected features in the map, which is not automatically done by
271			// the origin: FeatureSelectedEvent
272	alfonx	97	changeLayerStyle(layerSelModel.getSelection());
273	alfonx	106
274	alfonx	97	// Danger of event circles in propertyChange(..) banned
275			selectionChangeCausedByMe = false;
276			}
277			}
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